Barbecue



FIG. 1 is a front perspective view of a barbecue showing the new design;

FIG. 2 is a left side view thereof (with the right side view being a mirror image); and,

FIG. 3 is a front side view thereof (with the rear side view being a mirror image apart from the positions of the grill grates).

The broken lines in the drawings showing the bolts, brackets, and rectangular portions of the barbeque forms no part of the claimed design. 

CLAIM The ornamental design for a barbecue, as shown and described. 